Seabra GM, Kaplan IG, Zakrzewski VG, Ortiz JV. Electron propagator theory calculations of molecular photoionization cross sections: The first-row hydrides.
J Chem Phys 2004;
121:4143-55. [PMID:
15332961 DOI:
10.1063/1.1773135]
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Abstract
Together with ionization potentials, cross sections provide valuable information for the interpretation of photoelectron spectra. We have developed a program to perform ab initio calculations of photoionization cross sections within the electric dipole approximation using electron propagator theory. Applications to the first-row hydrides CH(4), NH(3), H(2)O, and HF, using several approximations for the propagator self-energy and the plane-wave and orthogonalized-plane-wave approximations to represent the photoelectron, as well as comparison to experimental data, are presented. This program is implemented within the quantum chemistry package GAUSSIAN.
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